
A bone density scan, also called a DEXA or DXA scan (dual-energy X-ray absorptiometry), is a medical test used to measure the strength and density of bones.
It works by using a very low dose of X-rays to determine how much calcium and other minerals are present in a section of bone, usually the hip or spine. The results help doctors assess a person’s risk of fractures and diagnose conditions such as osteoporosis or osteopenia. The procedure is quick, painless, and noninvasive, typically taking about 10–20 minutes, and by identifying bone loss early, a bone density scan helps guide treatment and lifestyle changes to protect bone health.



